The invention provides a drug-loading type guided tissue regeneration membrane and preparation method thereof. Polycaprolactone and other biodegradable aliphatic polyesters are used as raw materials and added with an antibacterial drug, and the materials are prepared into a single-layer guided tissue regeneration membrane through an electrospinning method. Or, polycaprolactone and degradable aliphatic polyester material are used as a dense layer, degradable natural polymer material and bio active particles are used as a loose layer, and an antibacterial drug is added to the dense layer; and the layers are prepared into a double-layer guided tissue regeneration membrane with different pore structures and biological activity through a layer by layer electrostatic spinning method. The membrane material provided by the invention has excellent biocompatibility, mechanical properties and degradation property consistent with tissue repair process, can effectively prevent the growth of fibroblasts towards tissue defects, at the same time promote the regeneration repair of tissue, does not have to taken out through a secondary operation; and the membrane material can effectively inhibit bacteria infection and inflammation after the operation, can be widely used in medical fields, such as guided tissue regeneration, postoperative adhesion prevention and drug delivery membrane.